WMO Distiller
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Waste motor oil Continuous Still.

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High temperature used automotive oil reformer. 
Colored diesel bleaching

  Continuous distillation unit
(diesel maker).

This is not a secret that many backyard researches, trying to build a system that would successfully process a waste motor oil into a good usable diesel fuel, many of them had built a systems of some sort that are capable of some sort of diesel like fuel in many cases of a  questionable quality.

Not many will risk to fill a fuel tank of a modern car with this kind of fuel, and as a result in most cases this fuel is entirely for an old prehistoric  stationary engines that are not really care about the kind of fuels they are fed with.

On another hand there are many people – “black diesel users” - who tries (some claim success) to simply process the used motor oil trough the sets of filters, add some “secret”  ingredient, mix with normal diesel fuel in some proportions and use it as a conventional diesel fuel.

WMO to diesel processor

Anyway  while people searching for the method that will significantly lower their fuel expenses there are some problems that involve the usage of such a fuel, - in some countries there are strict rules that would not allow to use these kinds of processed fuels especially black diesel, some engines simply won’t tolerate these fuels. And despite of simple usage of the “Black diesel” one will need a set of expensive equipment; the backyard oil refining machines in most cases are really big, heavy constructions that may be appropriate for someone who lives on a farmland – not for everyone.


Thus the fuel that produced out of the waste oil must be clear and transparent, as real as possible, the machine as small as possible with low maintenance and capable of relatively good processing volumes, the supporting equipment with fuel treatment options must be as simple as possible yet giving the best possible results, moreover any person interested in home fuel production whose hands are growing from the correct place should be able to replicate the oil processing machine in a simple garage.

WMO continuous still 

WMO continuous still


Sorry for a long introduction, here I want to introduce a new Continuous distillation machine (Oil Still)

That easy to work with, really small and mobile, low maintenance, yet capable of really good quality diesel fuel.

The machine is relatively safe in comparison with oversized monsters where people trying to boil gallons and gallons of oil at once - and no one wants to be next to extremely hot system filled with hundreds of liters overheated oil.

But this particular machine made the way when the oil is stored in a separate container and continuously pumped from distance into the reactor of the distiller, at the same time  the resulting fuel and waste can be also evacuated from the distiller into the containers via the pipes that are far enough from the still . Thus the system at any present time processing just a fraction of the used oil just about 2.5 - 3L (less than one gallon) and while all safety measures must in place, the 3L of boiling oil is not 300L and even not 10L. The continuous distiller is designed the way that no overpressure is possible at all - the reactor is bypassed and as a result all the reactions are happening at atmospheric pressure, while no oxygen can get into the system.

WMO retort


Now let’s list the materials this machine is capable to process into the diesel fuel:

Motor oils – mineral and synthetic, automatic transmission oil of any kind, industrial mineral oils, transformer oil, hydraulic mineral oils and mixes of any listed above.

The distiller can bleach dark diesel fuels, and “red diesel”.

Currently I put together a construction manual of a continuous distiller that help you to build a real continuous waste motor oil distiller that would be capable to continuously process used automotive and industrial oils into usable and clean diesel fuel at rates of up to 10L per hour, moreover the continuous distiller is capable to bleach dark and dirty diesel based fuels, and will remove the dye from the dyed diesel fuel at rates of up to 15L per hour. Thus practically supplying the owner with almost free fuel for diesel car, diesel generator, diesel heater (burner) or agricultural machinery in your farm, all you need to do is to find a supply of used engine oil that some mechanics are having trouble to get rid of.

diesel fuel made out of automatic transmission oil 

A sample of diesel fuel made out of automatic transmission oil with some absorbent at the bottom of the jar.

Thus you are virtually will own your own crude oil processing mini factory that will pay for itself in no time. Now, let’s do some calculation – the cost of manual is yet US $100.00 
if second hand metal from the scrap yard is used than it could be bought from $20.00 up to $50.00

oil processing still

The cost of 1L of the diesel fuel in Europe is minimum $1.30 and maximum is $1.75
Thus if you use only 20L of diesel fuel per week – you’ll spend from $1352.00 up to $1820.00
And this is less likely possible minimum; in reality overage car owner will double these figures at least, I am not talking about a farm machinery and other possible equipment like backup power generators, water pumps, boats and so on – just name it…

samples of diesel fuel made out of different waste oils 

Samples of diesel fuel made out of different waste oils

WMO continuous stillAnd at the same time many of us can find a good source of some kind of used automotive oil – motor oil, automatic transmission oil, hydraulic oil… at cost of asking, some mechanics will be happy just to get rid of it, or maybe you are a motor mechanic, or own the car scrap/removal business and thinking about improving of your business output and instead of having trouble to dispose your collected sump oil – you may turn it into a useful fuel to run your yard machinery and diesel heaters, backup generators.

The distiller is a low maintenance true continuous oil distillation machine that is not a pyrolysis machine - this distiller if correctly used is capable of good quality fuel that will not be prone to oxidation, will not smell horribly like a pyrolysis fuel and will ensure a normal engine work.
Anyway even at lowest diesel fuel prices, this machine will pay for itself in no time at overage production rate of 10L per hour it will save you at least $10.00 per hour worth of fuel – remember the crude oil prices are climbing up again so they’ll pull the cost of fuels as well!!!

WMO continuous still
The machine that described in this manual is simple and relatively easy to build by any person who can work
with sheet metal and weld a bit, the manual contains all necessary information to replicate the distiller described in these construction plans.
The plans are loaded with heaps of step by step pictures of the real working still construction, there are “how to run” and “treatment plant” videos, also some info about how to treat the homemade diesel. The distiller is a simple continuous system, and despite of simplicity it gives a really good results while bleaching colored diesel based fuels, including red diesel fuel, and also capable to process pyrolysis liquids, petroleum gas condensates, and capable of processing of used automotive and industrial mineral and synthetic oils into a usable diesel fuel.

I will be happy to answer all your questions in regards of the continuous oil distiller.

To buy WMO continuous distiller (diesel maker) construction plans - click the link below:


WMO continuous distiller's abilities.

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